Principal Investigator
Can explain individual responsibility in collaborative research.
EB1A Supporting Evidence
EB1A Recommendation Letters for Researchers: Explain Evidence Instead of Replacing It
Recommendation letters can help USCIS understand technical research, citation context, independent adoption and the applicant's role in complex projects. Letters are not a standalone EB1A regulatory criterion, and their strongest use is to explain specific facts supported by objective evidence.
Different Witnesses
Use the Writer Best Positioned to Prove Each Fact
Independent Researcher
Can explain citation, adoption or recognition outside the applicant's group.
Journal Editor
Can document judging activity and reviewer selection.
Technical User
Can explain implementation or practical influence.
Evidence File
Objective Records That Can Corroborate Letters
Citing Publications Independent scholarly use.
Implementation Records Actual technical or clinical adoption.
Reviewer Records Completed judging activity.
Patent Records Innovation and inventorship.
Project Documents Individual technical responsibility.
Citation Benchmarks Context for scholarly influence.
Organization Records Evidence supporting critical role claims.
Media or Awards Independent professional recognition.
Common Mistake
Adjectives Are Not a Substitute for Evidence
Weak
Dr. Smith is one of the greatest researchers in the world.
The conclusion gives USCIS little factual basis for evaluating why the writer holds that opinion.
Stronger
Describe a specific contribution and the evidence showing impact.
Explain how the writer encountered the work and identify objective records supporting the conclusion.
Build the Complete EB1A Record
Individual Criteria Should Support One Coherent Extraordinary Ability Case
Common Questions
Frequently Asked Questions
How many recommendation letters are required?
No fixed regulatory number exists.
Must every writer be independent?
No.
Are letters a separate EB1A criterion?
No.
Can a citing researcher write a useful letter?
Yes, particularly when the writer can explain substantive independent use of the work.
Primary Legal Sources USCIS Policy Manual — Extraordinary Ability 8 C.F.R. § 204.5(h)